Get summary

curl --request POST \
  --url https://api.odin.io/v1/hosts/summary \
  --header 'Content-Type: */*' \
  --header 'X-API-Key: <api-key>' \
  --data '{
  "field": "<string>",
  "limit": 123,
  "query": "<string>"
}'

{
  "data": {
    "buckets": [
      {
        "doc_count": 123,
        "key": {}
      }
    ],
    "doc_count_error_upper_bound": 123,
    "sum_other_doc_count": 123
  },
  "message": "<string>",
  "success": true
}